149580919 has 2 divisors, whose sum is σ = 149580920. Its totient is φ = 149580918.

The previous prime is 149580913. The next prime is 149580923. The reversal of 149580919 is 919085941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149580919 - 2⁷ = 149580791 is a prime.

It is a super-2 number, since 2×149580919² = 44748902657769122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149580913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74790459 + 74790460.

It is an arithmetic number, because the mean of its divisors is an integer number (74790460).

Almost surely, 2^149580919 is an apocalyptic number.

149580919 is a deficient number, since it is larger than the sum of its proper divisors (1).

149580919 is an equidigital number, since it uses as much as digits as its factorization.

149580919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 149580919 is about 12230.3278369797. The cubic root of 149580919 is about 530.8340008113.

The spelling of 149580919 in words is "one hundred forty-nine million, five hundred eighty thousand, nine hundred nineteen".