146893971 has 8 divisors (see below), whose sum is σ = 223838464. Its totient is φ = 83939400.

The previous prime is 146893969. The next prime is 146893973. The reversal of 146893971 is 179398641.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (146893969) and next prime (146893973).

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

It is not a de Polignac number, because 146893971 - 2¹ = 146893969 is a prime.

It is a super-2 number, since 2×146893971² = 43155677432297682, which contains 22 as substring.

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 146893971.

It is not an unprimeable number, because it can be changed into a prime (146893973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3497455 + ... + 3497496.

It is an arithmetic number, because the mean of its divisors is an integer number (27979808).

Almost surely, 2^146893971 is an apocalyptic number.

146893971 is a deficient number, since it is larger than the sum of its proper divisors (76944493).

146893971 is an equidigital number, since it uses as much as digits as its factorization.

146893971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994961.

The product of its digits is 326592, while the sum is 48.

The square root of 146893971 is about 12119.9823019673. The cubic root of 146893971 is about 527.6362889160.

The spelling of 146893971 in words is "one hundred forty-six million, eight hundred ninety-three thousand, nine hundred seventy-one".