151440061 has 4 divisors (see below), whose sum is σ = 152596224. Its totient is φ = 150283900.

The previous prime is 151440041. The next prime is 151440071. The reversal of 151440061 is 160044151.

151440061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160044151 = 43 ⋅3721957.

It is a cyclic number.

It is not a de Polignac number, because 151440061 - 2⁷ = 151439933 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151440011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577885 + ... + 578146.

It is an arithmetic number, because the mean of its divisors is an integer number (38149056).

Almost surely, 2^151440061 is an apocalyptic number.

It is an amenable number.

151440061 is a deficient number, since it is larger than the sum of its proper divisors (1156163).

151440061 is a wasteful number, since it uses less digits than its factorization.

151440061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156162.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 151440061 is about 12306.0985287783. The cubic root of 151440061 is about 533.0241978907.

The spelling of 151440061 in words is "one hundred fifty-one million, four hundred forty thousand, sixty-one".