151568 has 10 divisors (see below), whose sum is σ = 293694. Its totient is φ = 75776.

The previous prime is 151561. The next prime is 151573. The reversal of 151568 is 865151.

It can be written as a sum of positive squares in only one way, i.e., 150544 + 1024 = 388^2 + 32^2 .

It is not an unprimeable number, because it can be changed into a prime (151561) by changing a digit.

151568 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4721 + ... + 4752.

2¹⁵¹⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

151568 is a deficient number, since it is larger than the sum of its proper divisors (142126).

151568 is an equidigital number, since it uses as much as digits as its factorization.

151568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481 (or 9475 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 151568 is about 389.3173512701. The cubic root of 151568 is about 53.3174258114.

The spelling of 151568 in words is "one hundred fifty-one thousand, five hundred sixty-eight".