151161457 has 4 divisors (see below), whose sum is σ = 151186420. Its totient is φ = 151136496.

The previous prime is 151161443. The next prime is 151161533. The reversal of 151161457 is 754161151.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 754161151 = 16903 ⋅44617.

It can be written as a sum of positive squares in 2 ways, for example, as 67914081 + 83247376 = 8241^2 + 9124^2 .

It is a cyclic number.

It is not a de Polignac number, because 151161457 - 2²³ = 142772849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151161557) 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, 3019 + ... + 17647.

It is an arithmetic number, because the mean of its divisors is an integer number (37796605).

Almost surely, 2^151161457 is an apocalyptic number.

It is an amenable number.

151161457 is a deficient number, since it is larger than the sum of its proper divisors (24963).

151161457 is a wasteful number, since it uses less digits than its factorization.

151161457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24962.

The product of its digits is 4200, while the sum is 31.

The square root of 151161457 is about 12294.7735644053. The cubic root of 151161457 is about 532.6971293626.

The spelling of 151161457 in words is "one hundred fifty-one million, one hundred sixty-one thousand, four hundred fifty-seven".