151875881 has 2 divisors, whose sum is σ = 151875882. Its totient is φ = 151875880.

The previous prime is 151875859. The next prime is 151875883. The reversal of 151875881 is 188578151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116294656 + 35581225 = 10784^2 + 5965^2 .

It is a cyclic number.

It is not a de Polignac number, because 151875881 - 2⁶ = 151875817 is a prime.

It is a super-2 number, since 2×151875881² = 46132566459052322, which contains 22 as substring.

Together with 151875883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (151875883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75937940 + 75937941.

It is an arithmetic number, because the mean of its divisors is an integer number (75937941).

Almost surely, 2^151875881 is an apocalyptic number.

It is an amenable number.

151875881 is a deficient number, since it is larger than the sum of its proper divisors (1).

151875881 is an equidigital number, since it uses as much as digits as its factorization.

151875881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 44.

The square root of 151875881 is about 12323.7932877828. The cubic root of 151875881 is about 533.5350273169.

The spelling of 151875881 in words is "one hundred fifty-one million, eight hundred seventy-five thousand, eight hundred eighty-one".