151461623 has 4 divisors (see below), whose sum is σ = 151616688. Its totient is φ = 151306560.

The previous prime is 151461613. The next prime is 151461631. The reversal of 151461623 is 326164151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326164151 = 4973 ⋅65587.

It is a cyclic number.

It is not a de Polignac number, because 151461623 - 2²⁰ = 150413047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151461613) 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, 76058 + ... + 78023.

It is an arithmetic number, because the mean of its divisors is an integer number (37904172).

Almost surely, 2^151461623 is an apocalyptic number.

151461623 is a deficient number, since it is larger than the sum of its proper divisors (155065).

151461623 is an equidigital number, since it uses as much as digits as its factorization.

151461623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155064.

The product of its digits is 4320, while the sum is 29.

The square root of 151461623 is about 12306.9745672931. The cubic root of 151461623 is about 533.0494939765.

The spelling of 151461623 in words is "one hundred fifty-one million, four hundred sixty-one thousand, six hundred twenty-three".