4072154 has 4 divisors (see below), whose sum is σ = 6108234. Its totient is φ = 2036076.

The previous prime is 4072147. The next prime is 4072171. The reversal of 4072154 is 4512704.

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

It can be written as a sum of positive squares in only one way, i.e., 2181529 + 1890625 = 1477^2 + 1375^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018037 + ... + 1018040.

Almost surely, 2^4072154 is an apocalyptic number.

4072154 is a deficient number, since it is larger than the sum of its proper divisors (2036080).

4072154 is a wasteful number, since it uses less digits than its factorization.

4072154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036079.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4072154 is about 2017.9578786486. The cubic root of 4072154 is about 159.6889007081.

Adding to 4072154 its reverse (4512704), we get a palindrome (8584858).

It can be divided in two parts, 407 and 2154, that multiplied together give a palindrome (876678).

The spelling of 4072154 in words is "four million, seventy-two thousand, one hundred fifty-four".