151553 has 2 divisors, whose sum is σ = 151554. Its totient is φ = 151552.

The previous prime is 151549. The next prime is 151561. The reversal of 151553 is 355151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135424 + 16129 = 368^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 151553 - 2² = 151549 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (151523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75776 + 75777.

It is an arithmetic number, because the mean of its divisors is an integer number (75777).

It is a Proth number, since it is equal to 37 ⋅ 2¹² + 1 and 37 < 2¹².

2¹⁵¹⁵⁵³ is an apocalyptic number.

It is an amenable number.

151553 is a deficient number, since it is larger than the sum of its proper divisors (1).

151553 is an equidigital number, since it uses as much as digits as its factorization.

151553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 375, while the sum is 20.

The square root of 151553 is about 389.2980863041. The cubic root of 151553 is about 53.3156668918.

The spelling of 151553 in words is "one hundred fifty-one thousand, five hundred fifty-three".