149169345 has 16 divisors (see below), whose sum is σ = 257030592. Its totient is φ = 73437120.

The previous prime is 149169331. The next prime is 149169347. The reversal of 149169345 is 543961941.

It is not a de Polignac number, because 149169345 - 2⁵ = 149169313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149169297 and 149169306.

It is not an unprimeable number, because it can be changed into a prime (149169347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382291 + ... + 382680.

It is an arithmetic number, because the mean of its divisors is an integer number (16064412).

Almost surely, 2^149169345 is an apocalyptic number.

149169345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149169345 is a deficient number, since it is larger than the sum of its proper divisors (107861247).

149169345 is a wasteful number, since it uses less digits than its factorization.

149169345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764992.

The product of its digits is 116640, while the sum is 42.

The square root of 149169345 is about 12213.4902873830. The cubic root of 149169345 is about 530.3466878513.

The spelling of 149169345 in words is "one hundred forty-nine million, one hundred sixty-nine thousand, three hundred forty-five".