1025426207 has 4 divisors (see below), whose sum is σ = 1104305160. Its totient is φ = 946547256.

The previous prime is 1025426201. The next prime is 1025426209. The reversal of 1025426207 is 7026245201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025426207 - 2²⁶ = 958317343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025426207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025426201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39439457 + ... + 39439482.

It is an arithmetic number, because the mean of its divisors is an integer number (276076290).

Almost surely, 2^1025426207 is an apocalyptic number.

1025426207 is a deficient number, since it is larger than the sum of its proper divisors (78878953).

1025426207 is an equidigital number, since it uses as much as digits as its factorization.

1025426207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78878952.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1025426207 is about 32022.2767304263. The cubic root of 1025426207 is about 1008.4045676849.

The spelling of 1025426207 in words is "one billion, twenty-five million, four hundred twenty-six thousand, two hundred seven".