153902081 has 2 divisors, whose sum is σ = 153902082. Its totient is φ = 153902080.

The previous prime is 153902053. The next prime is 153902107. The reversal of 153902081 is 180209351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148449856 + 5452225 = 12184^2 + 2335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153902081 is a prime.

It is a super-2 number, since 2×153902081² = 47371701072261122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (153902041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76951040 + 76951041.

It is an arithmetic number, because the mean of its divisors is an integer number (76951041).

Almost surely, 2^153902081 is an apocalyptic number.

It is an amenable number.

153902081 is a deficient number, since it is larger than the sum of its proper divisors (1).

153902081 is an equidigital number, since it uses as much as digits as its factorization.

153902081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 153902081 is about 12405.7277497130. The cubic root of 153902081 is about 535.8972117165.

It can be divided in two parts, 15390 and 2081, that added together give a palindrome (17471).

The spelling of 153902081 in words is "one hundred fifty-three million, nine hundred two thousand, eighty-one".