1071620051 has 2 divisors, whose sum is σ = 1071620052. Its totient is φ = 1071620050.

The previous prime is 1071620047. The next prime is 1071620057. The reversal of 1071620051 is 1500261701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1071620051 - 2² = 1071620047 is a prime.

It is a super-2 number, since 2×1071620051² = 2296739067410485202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1071619999 and 1071620026.

It is not a weakly prime, because it can be changed into another prime (1071620057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535810025 + 535810026.

It is an arithmetic number, because the mean of its divisors is an integer number (535810026).

Almost surely, 2^1071620051 is an apocalyptic number.

1071620051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071620051 is an equidigital number, since it uses as much as digits as its factorization.

1071620051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1071620051 is about 32735.6083034973. The cubic root of 1071620051 is about 1023.3250617611.

Adding to 1071620051 its reverse (1500261701), we get a palindrome (2571881752).

The spelling of 1071620051 in words is "one billion, seventy-one million, six hundred twenty thousand, fifty-one".