149900587 has 2 divisors, whose sum is σ = 149900588. Its totient is φ = 149900586.

The previous prime is 149900581. The next prime is 149900603. The reversal of 149900587 is 785009941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149900587 is a prime.

It is not a weakly prime, because it can be changed into another prime (149900581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74950293 + 74950294.

It is an arithmetic number, because the mean of its divisors is an integer number (74950294).

Almost surely, 2^149900587 is an apocalyptic number.

149900587 is a deficient number, since it is larger than the sum of its proper divisors (1).

149900587 is an equidigital number, since it uses as much as digits as its factorization.

149900587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 149900587 is about 12243.3895225138. The cubic root of 149900587 is about 531.2118785656.

The spelling of 149900587 in words is "one hundred forty-nine million, nine hundred thousand, five hundred eighty-seven".