149961774 has 8 divisors (see below), whose sum is σ = 299923560. Its totient is φ = 49987256.

The previous prime is 149961767. The next prime is 149961781. The reversal of 149961774 is 477169941.

It is an interprime number because it is at equal distance from previous prime (149961767) and next prime (149961781).

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

149961774 is an admirable number.

It is a super-2 number, since 2×149961774² = 44977067322454152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 12496809 + ... + 12496820.

It is an arithmetic number, because the mean of its divisors is an integer number (37490445).

Almost surely, 2^149961774 is an apocalyptic number.

149961774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149961774 is a wasteful number, since it uses less digits than its factorization.

149961774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24993634.

The product of its digits is 381024, while the sum is 48.

The square root of 149961774 is about 12245.8880445642. Note that the first 3 decimals coincide. The cubic root of 149961774 is about 531.2841461051.

The spelling of 149961774 in words is "one hundred forty-nine million, nine hundred sixty-one thousand, seven hundred seventy-four".