149854531 has 2 divisors, whose sum is σ = 149854532. Its totient is φ = 149854530.

The previous prime is 149854519. The next prime is 149854543. The reversal of 149854531 is 135458941.

149854531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (149854519) and next prime (149854543).

It is a cyclic number.

It is not a de Polignac number, because 149854531 - 2²³ = 141465923 is a prime.

It is a super-2 number, since 2×149854531² = 44912760922459922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149854561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74927265 + 74927266.

It is an arithmetic number, because the mean of its divisors is an integer number (74927266).

Almost surely, 2^149854531 is an apocalyptic number.

149854531 is a deficient number, since it is larger than the sum of its proper divisors (1).

149854531 is an equidigital number, since it uses as much as digits as its factorization.

149854531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 149854531 is about 12241.5085263214. The cubic root of 149854531 is about 531.1574691715.

The spelling of 149854531 in words is "one hundred forty-nine million, eight hundred fifty-four thousand, five hundred thirty-one".