752161261 has 2 divisors, whose sum is σ = 752161262. Its totient is φ = 752161260.

The previous prime is 752161237. The next prime is 752161279. The reversal of 752161261 is 162161257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651780900 + 100380361 = 25530^2 + 10019^2 .

It is a cyclic number.

It is not a de Polignac number, because 752161261 - 2¹³ = 752153069 is a prime.

It is a super-2 number, since 2×752161261² = 1131493125098220242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (752161231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376080630 + 376080631.

It is an arithmetic number, because the mean of its divisors is an integer number (376080631).

Almost surely, 2^752161261 is an apocalyptic number.

It is an amenable number.

752161261 is a deficient number, since it is larger than the sum of its proper divisors (1).

752161261 is an equidigital number, since it uses as much as digits as its factorization.

752161261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 752161261 is about 27425.5585357892. The cubic root of 752161261 is about 909.4321865306.

The spelling of 752161261 in words is "seven hundred fifty-two million, one hundred sixty-one thousand, two hundred sixty-one".