151131553 has 2 divisors, whose sum is σ = 151131554. Its totient is φ = 151131552.

The previous prime is 151131473. The next prime is 151131559. The reversal of 151131553 is 355131151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146216464 + 4915089 = 12092^2 + 2217^2 .

It is an emirp because it is prime and its reverse (355131151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151131553 - 2¹⁷ = 151000481 is a prime.

It is not a weakly prime, because it can be changed into another prime (151131559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75565776 + 75565777.

It is an arithmetic number, because the mean of its divisors is an integer number (75565777).

Almost surely, 2^151131553 is an apocalyptic number.

It is an amenable number.

151131553 is a deficient number, since it is larger than the sum of its proper divisors (1).

151131553 is an equidigital number, since it uses as much as digits as its factorization.

151131553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1125, while the sum is 25.

The square root of 151131553 is about 12293.5573777487. The cubic root of 151131553 is about 532.6619995400.

The spelling of 151131553 in words is "one hundred fifty-one million, one hundred thirty-one thousand, five hundred fifty-three".