151878613 has 2 divisors, whose sum is σ = 151878614. Its totient is φ = 151878612.

The previous prime is 151878607. The next prime is 151878653. The reversal of 151878613 is 316878151.

It is an a-pointer prime, because the next prime (151878653) can be obtained adding 151878613 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134722449 + 17156164 = 11607^2 + 4142^2 .

It is a cyclic number.

It is not a de Polignac number, because 151878613 - 2⁵ = 151878581 is a prime.

It is a super-2 number, since 2×151878613² = 46134226173607538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151878653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75939306 + 75939307.

It is an arithmetic number, because the mean of its divisors is an integer number (75939307).

Almost surely, 2^151878613 is an apocalyptic number.

It is an amenable number.

151878613 is a deficient number, since it is larger than the sum of its proper divisors (1).

151878613 is an equidigital number, since it uses as much as digits as its factorization.

151878613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 40.

The square root of 151878613 is about 12323.9041297797. The cubic root of 151878613 is about 533.5382264401.

The spelling of 151878613 in words is "one hundred fifty-one million, eight hundred seventy-eight thousand, six hundred thirteen".