20150957 has 2 divisors, whose sum is σ = 20150958. Its totient is φ = 20150956.

The previous prime is 20150953. The next prime is 20150983. The reversal of 20150957 is 75905102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16410601 + 3740356 = 4051^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 20150957 - 2² = 20150953 is a prime.

It is a super-2 number, since 2×20150957² = 812122136031698, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075478 + 10075479.

It is an arithmetic number, because the mean of its divisors is an integer number (10075479).

Almost surely, 2^20150957 is an apocalyptic number.

It is an amenable number.

20150957 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150957 is an equidigital number, since it uses as much as digits as its factorization.

20150957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 20150957 is about 4488.9817330883. The cubic root of 20150957 is about 272.1229845011.

It can be divided in two parts, 2015095 and 7, that added together give a palindrome (2015102).

The spelling of 20150957 in words is "twenty million, one hundred fifty thousand, nine hundred fifty-seven".