1025146646 has 8 divisors (see below), whose sum is σ = 1538187840. Its totient is φ = 512417368.

The previous prime is 1025146621. The next prime is 1025146649. The reversal of 1025146646 is 6466415201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025146649) 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, 69581 + ... + 83016.

It is an arithmetic number, because the mean of its divisors is an integer number (192273480).

Almost surely, 2^1025146646 is an apocalyptic number.

1025146646 is a deficient number, since it is larger than the sum of its proper divisors (513041194).

1025146646 is a wasteful number, since it uses less digits than its factorization.

1025146646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155958.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1025146646 is about 32017.9113310035. The cubic root of 1025146646 is about 1008.3129192203.

The spelling of 1025146646 in words is "one billion, twenty-five million, one hundred forty-six thousand, six hundred forty-six".