361490501 has 2 divisors, whose sum is σ = 361490502. Its totient is φ = 361490500.

The previous prime is 361490497. The next prime is 361490513. The reversal of 361490501 is 105094163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238857025 + 122633476 = 15455^2 + 11074^2 .

It is a cyclic number.

It is not a de Polignac number, because 361490501 - 2² = 361490497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361490531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180745250 + 180745251.

It is an arithmetic number, because the mean of its divisors is an integer number (180745251).

Almost surely, 2^361490501 is an apocalyptic number.

It is an amenable number.

361490501 is a deficient number, since it is larger than the sum of its proper divisors (1).

361490501 is an equidigital number, since it uses as much as digits as its factorization.

361490501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 361490501 is about 19012.9035394387. The cubic root of 361490501 is about 712.3590781520.

The spelling of 361490501 in words is "three hundred sixty-one million, four hundred ninety thousand, five hundred one".