253203157 has 2 divisors, whose sum is σ = 253203158. Its totient is φ = 253203156.

The previous prime is 253203047. The next prime is 253203169. The reversal of 253203157 is 751302352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200335716 + 52867441 = 14154^2 + 7271^2 .

It is a cyclic number.

It is not a de Polignac number, because 253203157 - 2¹⁵ = 253170389 is a prime.

It is a super-2 number, since 2×253203157² = 128223677429533298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253203187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126601578 + 126601579.

It is an arithmetic number, because the mean of its divisors is an integer number (126601579).

Almost surely, 2^253203157 is an apocalyptic number.

It is an amenable number.

253203157 is a deficient number, since it is larger than the sum of its proper divisors (1).

253203157 is an equidigital number, since it uses as much as digits as its factorization.

253203157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 253203157 is about 15912.3586246666. The cubic root of 253203157 is about 632.6395986141.

The spelling of 253203157 in words is "two hundred fifty-three million, two hundred three thousand, one hundred fifty-seven".