149117455 has 8 divisors (see below), whose sum is σ = 189466992. Its totient is φ = 112276608.

The previous prime is 149117429. The next prime is 149117459. The reversal of 149117455 is 554711941.

149117455 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 149117455 - 2⁷ = 149117327 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 (149117459) 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, 877077 + ... + 877246.

It is an arithmetic number, because the mean of its divisors is an integer number (23683374).

Almost surely, 2^149117455 is an apocalyptic number.

149117455 is a deficient number, since it is larger than the sum of its proper divisors (40349537).

149117455 is a wasteful number, since it uses less digits than its factorization.

149117455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754345.

The product of its digits is 25200, while the sum is 37.

The square root of 149117455 is about 12211.3658122259. The cubic root of 149117455 is about 530.2851853104.

It can be divided in two parts, 14911 and 7455, that multiplied together give a triangular number (111161505 = T₁₄₉₁₀).

The spelling of 149117455 in words is "one hundred forty-nine million, one hundred seventeen thousand, four hundred fifty-five".