1154421607 has 2 divisors, whose sum is σ = 1154421608. Its totient is φ = 1154421606.

The previous prime is 1154421547. The next prime is 1154421613. The reversal of 1154421607 is 7061244511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1154421607 - 2²³ = 1146032999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154421007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577210803 + 577210804.

It is an arithmetic number, because the mean of its divisors is an integer number (577210804).

Almost surely, 2^1154421607 is an apocalyptic number.

1154421607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154421607 is an equidigital number, since it uses as much as digits as its factorization.

1154421607 is an evil number, because the sum of its binary digits is even.

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

The square root of 1154421607 is about 33976.7804095679. The cubic root of 1154421607 is about 1049.0305812932.

It can be divided in two parts, 115 and 4421607, that multiplied together give a palindrome (508484805).

The spelling of 1154421607 in words is "one billion, one hundred fifty-four million, four hundred twenty-one thousand, six hundred seven".