1996980154 has 16 divisors (see below), whose sum is σ = 3227317128. Its totient is φ = 921275712.

The previous prime is 1996980149. The next prime is 1996980173. The reversal of 1996980154 is 4510896991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1487259225 + 509720929 = 38565^2 + 22577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47604 + ... + 79120.

Almost surely, 2^1996980154 is an apocalyptic number.

1996980154 is a deficient number, since it is larger than the sum of its proper divisors (1230336974).

1996980154 is a wasteful number, since it uses less digits than its factorization.

1996980154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33969.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 1996980154 is about 44687.5838908303. The cubic root of 1996980154 is about 1259.2866025416.

The spelling of 1996980154 in words is "one billion, nine hundred ninety-six million, nine hundred eighty thousand, one hundred fifty-four".