153537961 has 2 divisors, whose sum is σ = 153537962. Its totient is φ = 153537960.

The previous prime is 153537929. The next prime is 153537983. The reversal of 153537961 is 169735351.

It is a happy number.

153537961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147987225 + 5550736 = 12165^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 153537961 - 2⁵ = 153537929 is a prime.

It is not a weakly prime, because it can be changed into another prime (153535961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76768980 + 76768981.

It is an arithmetic number, because the mean of its divisors is an integer number (76768981).

Almost surely, 2^153537961 is an apocalyptic number.

It is an amenable number.

153537961 is a deficient number, since it is larger than the sum of its proper divisors (1).

153537961 is an equidigital number, since it uses as much as digits as its factorization.

153537961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 40.

The square root of 153537961 is about 12391.0435799411. The cubic root of 153537961 is about 535.4742480111.

The spelling of 153537961 in words is "one hundred fifty-three million, five hundred thirty-seven thousand, nine hundred sixty-one".