151039969 has 4 divisors (see below), whose sum is σ = 151072020. Its totient is φ = 151007920.

The previous prime is 151039963. The next prime is 151039991. The reversal of 151039969 is 969930151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969930151 = 599 ⋅1619249.

It can be written as a sum of positive squares in 2 ways, for example, as 39526369 + 111513600 = 6287^2 + 10560^2 .

It is a cyclic number.

It is not a de Polignac number, because 151039969 - 2⁵ = 151039937 is a prime.

It is a super-2 number, since 2×151039969² = 45626144471041922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151039963) 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, 7414 + ... + 18895.

It is an arithmetic number, because the mean of its divisors is an integer number (37768005).

Almost surely, 2^151039969 is an apocalyptic number.

It is an amenable number.

151039969 is a deficient number, since it is larger than the sum of its proper divisors (32051).

151039969 is an equidigital number, since it uses as much as digits as its factorization.

151039969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32050.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 151039969 is about 12289.8319353846. The cubic root of 151039969 is about 532.5543820969.

The spelling of 151039969 in words is "one hundred fifty-one million, thirty-nine thousand, nine hundred sixty-nine".