149975000749 has 48 divisors (see below), whose sum is σ = 179950586880. Its totient is φ = 124579334880.

The previous prime is 149975000731. The next prime is 149975000753. The reversal of 149975000749 is 947000579941.

It is not a de Polignac number, because 149975000749 - 2³⁵ = 115615262381 is a prime.

It is a super-2 number, since 2×149975000749² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149975000749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149975000449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85846294 + ... + 85848040.

It is an arithmetic number, because the mean of its divisors is an integer number (3748970560).

Almost surely, 2^149975000749 is an apocalyptic number.

It is an amenable number.

149975000749 is a deficient number, since it is larger than the sum of its proper divisors (29975586131).

149975000749 is a wasteful number, since it uses less digits than its factorization.

With its successor (149975000750) it forms an eRAP, since the sums of their prime factors are consecutive (2238 and 2239).

149975000749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 149975000749 in words is "one hundred forty-nine billion, nine hundred seventy-five million, seven hundred forty-nine", and thus it is an aban number.