149211507 has 8 divisors (see below), whose sum is σ = 201345984. Its totient is φ = 98275688.

The previous prime is 149211497. The next prime is 149211509. The reversal of 149211507 is 705112941.

149211507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149211507 - 2⁷ = 149211379 is a prime.

It is a super-2 number, since 2×149211507² = 44528147642422098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149211509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299373 + ... + 299870.

It is an arithmetic number, because the mean of its divisors is an integer number (25168248).

Almost surely, 2^149211507 is an apocalyptic number.

149211507 is a deficient number, since it is larger than the sum of its proper divisors (52134477).

149211507 is an equidigital number, since it uses as much as digits as its factorization.

149211507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599329.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 149211507 is about 12215.2162076649. The cubic root of 149211507 is about 530.3966497938.

The spelling of 149211507 in words is "one hundred forty-nine million, two hundred eleven thousand, five hundred seven".