1021335497 has 16 divisors (see below), whose sum is σ = 1274740992. Its totient is φ = 796703040.

The previous prime is 1021335487. The next prime is 1021335499. The reversal of 1021335497 is 7945331201.

It is not a de Polignac number, because 1021335497 - 2⁶ = 1021335433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021335499) 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, 72578 + ... + 85499.

It is an arithmetic number, because the mean of its divisors is an integer number (79671312).

Almost surely, 2^1021335497 is an apocalyptic number.

It is an amenable number.

1021335497 is a deficient number, since it is larger than the sum of its proper divisors (253405495).

1021335497 is a wasteful number, since it uses less digits than its factorization.

1021335497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158168.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1021335497 is about 31958.3400225982. The cubic root of 1021335497 is about 1007.0618452839.

Adding to 1021335497 its reverse (7945331201), we get a palindrome (8966666698).

The spelling of 1021335497 in words is "one billion, twenty-one million, three hundred thirty-five thousand, four hundred ninety-seven".