149172041 has 4 divisors (see below), whose sum is σ = 150346752. Its totient is φ = 147997332.

The previous prime is 149172029. The next prime is 149172047. The reversal of 149172041 is 140271941.

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 149172041 - 2¹⁰ = 149171017 is a prime.

It is a super-2 number, since 2×149172041² = 44504595632211362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149171995 and 149172013.

It is not an unprimeable number, because it can be changed into a prime (149172047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587165 + ... + 587418.

It is an arithmetic number, because the mean of its divisors is an integer number (37586688).

Almost surely, 2^149172041 is an apocalyptic number.

It is an amenable number.

149172041 is a deficient number, since it is larger than the sum of its proper divisors (1174711).

149172041 is a wasteful number, since it uses less digits than its factorization.

149172041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174710.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 149172041 is about 12213.6006566450. The cubic root of 149172041 is about 530.3498828913.

The spelling of 149172041 in words is "one hundred forty-nine million, one hundred seventy-two thousand, forty-one".