151061869 has 4 divisors (see below), whose sum is σ = 172642144. Its totient is φ = 129481596.

The previous prime is 151061831. The next prime is 151061879. The reversal of 151061869 is 968160151.

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.

It is a cyclic number.

It is not a de Polignac number, because 151061869 - 2⁷ = 151061741 is a prime.

It is a super-2 number, since 2×151061869² = 45639376531546322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151061809) 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, 10790127 + ... + 10790140.

It is an arithmetic number, because the mean of its divisors is an integer number (43160536).

Almost surely, 2^151061869 is an apocalyptic number.

It is an amenable number.

151061869 is a deficient number, since it is larger than the sum of its proper divisors (21580275).

151061869 is an equidigital number, since it uses as much as digits as its factorization.

151061869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21580274.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 151061869 is about 12290.7228835411. The cubic root of 151061869 is about 532.5801200465.

The spelling of 151061869 in words is "one hundred fifty-one million, sixty-one thousand, eight hundred sixty-nine".