356138949 has 8 divisors (see below), whose sum is σ = 487685920. Its totient is φ = 231008976.

The previous prime is 356138947. The next prime is 356138953. The reversal of 356138949 is 949831653.

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

It is not a de Polignac number, because 356138949 - 2¹ = 356138947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356138898 and 356138907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356138941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604119 + ... + 1604340.

It is an arithmetic number, because the mean of its divisors is an integer number (60960740).

Almost surely, 2^356138949 is an apocalyptic number.

It is an amenable number.

356138949 is a deficient number, since it is larger than the sum of its proper divisors (131546971).

356138949 is a wasteful number, since it uses less digits than its factorization.

356138949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208499.

The product of its digits is 699840, while the sum is 48.

The square root of 356138949 is about 18871.6440460284. The cubic root of 356138949 is about 708.8263019234.

The spelling of 356138949 in words is "three hundred fifty-six million, one hundred thirty-eight thousand, nine hundred forty-nine".