149650531 has 2 divisors, whose sum is σ = 149650532. Its totient is φ = 149650530.

The previous prime is 149650499. The next prime is 149650549. The reversal of 149650531 is 135056941.

It is a strong prime.

It is an emirp because it is prime and its reverse (135056941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149650531 - 2⁵ = 149650499 is a prime.

It is a super-2 number, since 2×149650531² = 44790562857163922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149650331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74825265 + 74825266.

It is an arithmetic number, because the mean of its divisors is an integer number (74825266).

Almost surely, 2^149650531 is an apocalyptic number.

149650531 is a deficient number, since it is larger than the sum of its proper divisors (1).

149650531 is an equidigital number, since it uses as much as digits as its factorization.

149650531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 149650531 is about 12233.1733822422. The cubic root of 149650531 is about 530.9163345873.

The spelling of 149650531 in words is "one hundred forty-nine million, six hundred fifty thousand, five hundred thirty-one".