149487253 has 4 divisors (see below), whose sum is σ = 149918400. Its totient is φ = 149056108.

The previous prime is 149487227. The next prime is 149487259. The reversal of 149487253 is 352784941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149487253 - 2⁹ = 149486741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149487259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215053 + ... + 215746.

It is an arithmetic number, because the mean of its divisors is an integer number (37479600).

Almost surely, 2^149487253 is an apocalyptic number.

It is an amenable number.

149487253 is a deficient number, since it is larger than the sum of its proper divisors (431147).

149487253 is an equidigital number, since it uses as much as digits as its factorization.

149487253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431146.

The product of its digits is 241920, while the sum is 43.

The square root of 149487253 is about 12226.4979859320. The cubic root of 149487253 is about 530.7231767844.

It can be divided in two parts, 14948 and 7253, that added together give a square (22201 = 149²).

The spelling of 149487253 in words is "one hundred forty-nine million, four hundred eighty-seven thousand, two hundred fifty-three".