149509754 has 8 divisors (see below), whose sum is σ = 224479188. Its totient is φ = 74683360.

The previous prime is 149509751. The next prime is 149509757. The reversal of 149509754 is 457905941.

It is an interprime number because it is at equal distance from previous prime (149509751) and next prime (149509757).

It can be written as a sum of positive squares in 2 ways, for example, as 139122025 + 10387729 = 11795^2 + 3223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×149509754² = 44706333082281032, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149509751) 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, 33107 + ... + 37350.

Almost surely, 2^149509754 is an apocalyptic number.

149509754 is a deficient number, since it is larger than the sum of its proper divisors (74969434).

149509754 is a wasteful number, since it uses less digits than its factorization.

149509754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71520.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 149509754 is about 12227.4181248537. The cubic root of 149509754 is about 530.7498038107.

The spelling of 149509754 in words is "one hundred forty-nine million, five hundred nine thousand, seven hundred fifty-four".