1493761731 has 16 divisors (see below), whose sum is σ = 2483136768. Its totient is φ = 775980000.

The previous prime is 1493761721. The next prime is 1493761747. The reversal of 1493761731 is 1371673941.

It is not a de Polignac number, because 1493761731 - 2¹⁴ = 1493745347 is a prime.

It is a super-2 number, since 2×1493761731² = 4462648218000232722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1493761721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3233020 + ... + 3233481.

It is an arithmetic number, because the mean of its divisors is an integer number (155196048).

Almost surely, 2^1493761731 is an apocalyptic number.

1493761731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1493761731 is a deficient number, since it is larger than the sum of its proper divisors (989375037).

1493761731 is a wasteful number, since it uses less digits than its factorization.

1493761731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466522.

The product of its digits is 95256, while the sum is 42.

The square root of 1493761731 is about 38649.2138471147. The cubic root of 1493761731 is about 1143.1251408204.

The spelling of 1493761731 in words is "one billion, four hundred ninety-three million, seven hundred sixty-one thousand, seven hundred thirty-one".