150777949 has 24 divisors (see below), whose sum is σ = 184023360. Its totient is φ = 122943744.

The previous prime is 150777937. The next prime is 150777967. The reversal of 150777949 is 949777051.

It is not a de Polignac number, because 150777949 - 2¹³ = 150769757 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150777929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397642 + ... + 398020.

It is an arithmetic number, because the mean of its divisors is an integer number (7667640).

Almost surely, 2^150777949 is an apocalyptic number.

It is an amenable number.

150777949 is a deficient number, since it is larger than the sum of its proper divisors (33245411).

150777949 is a wasteful number, since it uses less digits than its factorization.

150777949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 49.

The square root of 150777949 is about 12279.1672763262. The cubic root of 150777949 is about 532.2462502649.

The spelling of 150777949 in words is "one hundred fifty million, seven hundred seventy-seven thousand, nine hundred forty-nine".