381702154 has 8 divisors (see below), whose sum is σ = 573679620. Its totient is φ = 190475616.

The previous prime is 381702151. The next prime is 381702199. The reversal of 381702154 is 451207183.

It can be written as a sum of positive squares in 2 ways, for example, as 369985225 + 11716929 = 19235^2 + 3423^2 .

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

It is not an unprimeable number, because it can be changed into a prime (381702151) 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, 186459 + ... + 188494.

Almost surely, 2^381702154 is an apocalyptic number.

381702154 is a deficient number, since it is larger than the sum of its proper divisors (191977466).

381702154 is a wasteful number, since it uses less digits than its factorization.

381702154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375464.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 381702154 is about 19537.1992363286. The cubic root of 381702154 is about 725.3955219572.

The spelling of 381702154 in words is "three hundred eighty-one million, seven hundred two thousand, one hundred fifty-four".