149125158569 has 4 divisors (see below), whose sum is σ = 150299372544. Its totient is φ = 147950944596.

The previous prime is 149125158557. The next prime is 149125158571. The reversal of 149125158569 is 965851521941.

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 149125158569 - 2¹² = 149125154473 is a prime.

It is a super-2 number, since 2×149125158569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149125158269) 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, 587106797 + ... + 587107050.

It is an arithmetic number, because the mean of its divisors is an integer number (37574843136).

Almost surely, 2^149125158569 is an apocalyptic number.

It is an amenable number.

149125158569 is a deficient number, since it is larger than the sum of its proper divisors (1174213975).

149125158569 is a wasteful number, since it uses less digits than its factorization.

149125158569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174213974.

The product of its digits is 3888000, while the sum is 56.

The spelling of 149125158569 in words is "one hundred forty-nine billion, one hundred twenty-five million, one hundred fifty-eight thousand, five hundred sixty-nine".